ID A0A161QCT2_9FIRM Unreviewed; 808 AA.
AC A0A161QCT2;
DT 06-JUL-2016, integrated into UniProtKB/TrEMBL.
DT 06-JUL-2016, sequence version 1.
DT 27-MAR-2024, entry version 38.
DE RecName: Full=DNA gyrase subunit A {ECO:0000256|HAMAP-Rule:MF_01897};
DE EC=5.6.2.2 {ECO:0000256|HAMAP-Rule:MF_01897};
GN Name=gyrA {ECO:0000256|HAMAP-Rule:MF_01897,
GN ECO:0000313|EMBL:KYO67254.1};
GN ORFNames=ATZ99_05400 {ECO:0000313|EMBL:KYO67254.1};
OS Thermovenabulum gondwanense.
OC Bacteria; Bacillota; Clostridia; Thermosediminibacterales;
OC Thermosediminibacteraceae; Thermovenabulum.
OX NCBI_TaxID=520767 {ECO:0000313|EMBL:KYO67254.1, ECO:0000313|Proteomes:UP000075737};
RN [1] {ECO:0000313|EMBL:KYO67254.1, ECO:0000313|Proteomes:UP000075737}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=R270 {ECO:0000313|EMBL:KYO67254.1,
RC ECO:0000313|Proteomes:UP000075737};
RA Patel B.K.;
RT "Draft genome of Thermovenabulum gondwanense isolated from a red
RT thermophilic microbial mat colonisisng an outflow channel of a bore well.";
RL Submitted (DEC-2015) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: A type II topoisomerase that negatively supercoils closed
CC circular double-stranded (ds) DNA in an ATP-dependent manner to
CC modulate DNA topology and maintain chromosomes in an underwound state.
CC Negative supercoiling favors strand separation, and DNA replication,
CC transcription, recombination and repair, all of which involve strand
CC separation. Also able to catalyze the interconversion of other
CC topological isomers of dsDNA rings, including catenanes and knotted
CC rings. Type II topoisomerases break and join 2 DNA strands
CC simultaneously in an ATP-dependent manner. {ECO:0000256|HAMAP-
CC Rule:MF_01897}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP-dependent breakage, passage and rejoining of double-
CC stranded DNA.; EC=5.6.2.2; Evidence={ECO:0000256|ARBA:ARBA00000185,
CC ECO:0000256|HAMAP-Rule:MF_01897};
CC -!- SUBUNIT: Heterotetramer, composed of two GyrA and two GyrB chains. In
CC the heterotetramer, GyrA contains the active site tyrosine that forms a
CC transient covalent intermediate with DNA, while GyrB binds cofactors
CC and catalyzes ATP hydrolysis. {ECO:0000256|HAMAP-Rule:MF_01897}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01897}.
CC -!- MISCELLANEOUS: Few gyrases are as efficient as E.coli at forming
CC negative supercoils. Not all organisms have 2 type II topoisomerases;
CC in organisms with a single type II topoisomerase this enzyme also has
CC to decatenate newly replicated chromosomes. {ECO:0000256|HAMAP-
CC Rule:MF_01897}.
CC -!- SIMILARITY: Belongs to the type II topoisomerase GyrA/ParC subunit
CC family. {ECO:0000256|ARBA:ARBA00008263, ECO:0000256|HAMAP-
CC Rule:MF_01897}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:KYO67254.1}.
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DR EMBL; LOHZ01000022; KYO67254.1; -; Genomic_DNA.
DR RefSeq; WP_068747714.1; NZ_LOHZ01000022.1.
DR AlphaFoldDB; A0A161QCT2; -.
DR STRING; 520767.ATZ99_05400; -.
DR PATRIC; fig|520767.4.peg.554; -.
DR OrthoDB; 9806486at2; -.
DR Proteomes; UP000075737; Unassembled WGS sequence.
DR GO; GO:0005694; C:chromosome; IEA:InterPro.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0034335; F:DNA negative supercoiling activity; IEA:UniProt.
DR GO; GO:0006265; P:DNA topological change; IEA:UniProtKB-UniRule.
DR GO; GO:0006261; P:DNA-templated DNA replication; IEA:UniProtKB-UniRule.
DR CDD; cd00187; TOP4c; 1.
DR Gene3D; 3.30.1360.40; -; 1.
DR Gene3D; 2.120.10.90; DNA gyrase/topoisomerase IV, subunit A, C-terminal; 1.
DR Gene3D; 3.90.199.10; Topoisomerase II, domain 5; 1.
DR Gene3D; 1.10.268.10; Topoisomerase, domain 3; 1.
DR HAMAP; MF_01897; GyrA; 1.
DR InterPro; IPR005743; GyrA.
DR InterPro; IPR006691; GyrA/parC_rep.
DR InterPro; IPR035516; Gyrase/topoIV_suA_C.
DR InterPro; IPR013760; Topo_IIA-like_dom_sf.
DR InterPro; IPR013758; Topo_IIA_A/C_ab.
DR InterPro; IPR013757; Topo_IIA_A_a_sf.
DR InterPro; IPR002205; Topo_IIA_dom_A.
DR NCBIfam; TIGR01063; gyrA; 1.
DR PANTHER; PTHR43493:SF5; DNA GYRASE SUBUNIT A, CHLOROPLASTIC_MITOCHONDRIAL; 1.
DR PANTHER; PTHR43493; DNA GYRASE/TOPOISOMERASE SUBUNIT A; 1.
DR Pfam; PF03989; DNA_gyraseA_C; 6.
DR Pfam; PF00521; DNA_topoisoIV; 1.
DR SMART; SM00434; TOP4c; 1.
DR SUPFAM; SSF101904; GyrA/ParC C-terminal domain-like; 1.
DR SUPFAM; SSF56719; Type II DNA topoisomerase; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_01897}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01897};
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|HAMAP-
KW Rule:MF_01897};
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_01897};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_01897}; Reference proteome {ECO:0000313|Proteomes:UP000075737};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01897}.
FT DOMAIN 11..463
FT /note="DNA topoisomerase type IIA"
FT /evidence="ECO:0000259|SMART:SM00434"
FT MOTIF 524..530
FT /note="GyrA-box"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
FT ACT_SITE 122
FT /note="O-(5'-phospho-DNA)-tyrosine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01897"
SQ SEQUENCE 808 AA; 90949 MW; 9570451AAD7B0D9A CRC64;
MAETYGKVMP VAIEEEMKKS YIDYAMSVIV GRALPDVRDG LKPIHRRILY AMSELNLTPD
RPHRKSATIV GDVMGKYHPH GDAAIYDAMV RMAQDFSIRY PLIDGHGNFG SVDGDPPAAM
RYTEARLSKI ALEMLSDIDK DTVDFIPNFD ETLKEPKVLP SRFPNLLVNG SSGIAVGMAT
NIPPHNLSEV IDGTIMMIEN KDVTPEELMK VIKGPDFPTG GIIVGTEGIK EMYTSGRGSI
VIRAKAKIEV EHGREKIIIN EIPYMVNKAK LIEKIAELVR DKHIEGITDI RDESDRNGIR
VVIEIRKDSS AKVILNKLYK HTQMQVTFGA IMLALVDNRP MVLNLRDIIY YYLEHQKDVI
VRRTKYELAK ARERVHILEG LRIALANLDE VISLIRKSKD VPTAKEGLIK KFNLTDKQAQ
VILDMRLQRL TALERQKIEE EYKELLQKIE YYEKVLSDEK MVLGIIKEEL LAIKEKFKDE
RRTAIVEDIE EISEEDLIAQ EDVVITMTHF GYVKRMPLSG YKSQRRGGKG VNGITTREED
FVEKIFVAST HHVLLFFTNL GNVYRLKAHE VPETSRTAKG TAIVNLINLK PGEKITAVIP
IKDFDEANYI VMVTKNGLIK KTLLSEFKAM RKTGIIAINL NPEDELIGVN LANDENEVIL
ATLKGLSIRF KVKDVSPLGR SAKGVKAMSL QKDDRIVAFD MVVDDRDVFI ITEKGFGKRT
PISEYRLQSR GGKGIITQKI TEKTGYVVSL RTVSHKDDII ISTANGMMIR LKVEGIPVTG
RNTRGVTLIK LEEEDSVSAV AVVSEEEE
//
